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DOWNLOAD THE Test Bank for Principles of Chemistry Molecular Approach 3rd Ed
m m m m m m m m m m m

ition Tro m




PrinciplesmofmChemistry:mAmMolecularmApproach,m3em(Tro)mChap
term2m AtomsmandmElements

1 ) Which mofmthemfollowingmis man mexamplemofmthemlawmofmmultiplemproportions?
A ) Amsamplemofmchlorinemis mfoundmtomcontain mthreemtimes mas mmuch mCl-35 mas mCl-37.
B ) Twomdifferentmcompounds mformedmfrom mcarbon mandmoxygen mhavemthemfollowingmmass mratios:
1.33 mgmO:m1 mgmCmandm2.66 mgmO:m1 mgmC.
C ) Twomdifferentmsamples mofmtablemsaltmaremfoundmtomhavemthemsamemratiomofmsodium mtomchlorine.
D ) Thematomicmmass mofmbrominemis mfoundmtombem79.90 mamu.
E ) Nitrogen mdioxidemalways mhas ma mmass mratiomofm2.28 mgmO:m1
mgmN.mAnswer:m B

Diff:m1 Var:m1
PagemRef:m2.2 mGlobal:
m G1,mG8

LO:m 2.2b

2 ) Which mofmthemfollowingmstatements mis mfalse maccordingmtomDalton's mAtomicmTheory?
A ) Atoms mcombinemin msimplemwholemnumbermratios mtomform mcompounds.
B ) Allmatoms mofmchlorinemhavemidenticalmproperties mthatmdistinguish mthem mfrom mothermelements.
C ) Onemcarbon matom mwillmcombinemwith monemoxygen matom mtomform ma mmoleculemofmcarbon mmonoxide.
D ) Atoms mofmsodium mdomnotmchangemintomanothermelementmduringmchemicalmreaction mwith mchlorine.
E ) An matom mofmnitrogen mcan mbembroken mdown mintomsmallermparticles mthatmwillmstillmhavemthem
uniquemproperties mofmnitrogen.
Answer:m E
Diff:m1 Var:m1
PagemRef:m2.2 mGlobal:
m G2




3 ) Identifymthemelementmthatmhas man matomicmnumbermofm40.
A ) neon
B ) calcium
C ) zirconium
D ) bromine
mAnswer:m

C
Diff:m1 Var:m1
PagemRef:m2.5 mGlobal:
m G2

LO:m 2.5

4 ) Thematomicmmass mformcadmium mis m .
A ) 48
B ) 112.41
C ) 40.08
D ) 20
Answer:m B
Diff:m1 Var:m1
PagemRef:m2.5 mGlobal:
1
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nc.
mynursytest.store

,DOWNLOAD THE Test Bank for Principles of Chemistry Molecular Approach 3rd Ed
m m m m m m m m m m m

ition Tro m




mG2
LO:m 2.5




2
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nc.
mynursytest.store

,DOWNLOAD THE Test Bank for Principles of Chemistry Molecular Approach 3rd Ed
m m m m m m m m m m m

ition Tro m




5 ) Themmass mnumbermis mequalmto
A ) themsum mofmthemsum mofmthemelectrons mandmprotons.
B ) themsum mofmthemsum mofmthemneutrons mandmelectrons.
C ) themsum mofmthemnumbermofmprotons,mneutrons,mandmelectrons.
D ) themsum mofmthemnumbermofmprotons mandmneutr
ons.mAnswer:m D
Diff:m1 Var:m1
PagemRef:m2.5 mGlobal:
m G1

LO:m 2.5

6 ) Whatmelementmis mdefinedmbymthemfollowingminformati


on?mp+ m= m11 n°m= m12 e-m= m11

A ) sodium
B ) vanadium
C ) magnesium
D ) titanium
mAnswer:m

A
Diff:m1 Var:m1
PagemRef:m2.5 mGlobal:
m G2

LO:m 2.5

7 ) Whatmelementmis mdefinedmbymthemfollowingminformati

on?mp+ m= m20 n°m= m20 e-m= m20

A ) zirconium
B ) calcium
C ) potassium
D ) neon
E ) argon m
Answer:m
B
Diff:m1 Var:m1
PagemRef:m2.5 mGlobal:
m G2

LO:m 2.5




3
Copyrightm©m2016mPearsonmEducation,mI
nc.
mynursytest.store

, DOWNLOAD THE Test Bank for Principles of Chemistry Molecular Approach 3rd Ed
m m m m m m m m m m m

ition Tro m




8 ) Whatmdoes m"X"mrepresentmin mthemfollowingmsymb
ol?m X

A ) mercury
B ) chlorine
C ) scandium
D ) bromine
E ) selenium
mAnswer:m

D
Diff:m1 Var:m1
PagemRef:m2.5 mGlobal:
m G2

LO:m 2.5

9 ) Whatmdoes m"X"mrepresentmin mthemfollowingmsymb
ol?mX

A ) silicon
B ) sulfur
C ) zinc
D ) ruthenium
E ) nickelmA
nswer:m A
Diff:m1 Var:m1
PagemRef:m2.5 mGlobal:
m G2

LO:m 2.5

10 ) Which mofmthemfollowingmstatements maboutmsubatomicmparticles mis mtrue?
A ) Amneutralmatom mcontains mthemsamemnumbermofmprotons mandmelectrons.
B ) Protons mhavemaboutmthemsamemmass mas melectrons.
C ) Electrons mmakemupmmostmofmthemmass mofman matom.
D ) Protons mandmneutrons mhavemopposite,mbutmequalmin mmagnitude,mcharges.
E ) Neutrons mandmelectrons maremfoundmin mthemnucleus mofman mat
om.mAnswer:m A
Diff:m1 Var:m1
PagemRef:m2.5 mGlobal:
m G1

LO:m 2.5




4
Copyrightm©m2016mPearsonmEducation,mI
nc.
mynursytest.store